A milium is a white bump caused by dead skin cells trapped under your skin. You can typically prevent eyelid bumps by always ...

yellow patches on the eyelids that often appear due to high cholesterol. These bumps don’t hurt or itch but may be a sign of a cholesterol problem. Milia: Milia are tiny, white, painless bumps ...

Of course, your painless white eyelid lesion could be something totally ... which is a blocked oil gland that appears like a painless lump/rubbery nodule or swelling under the eyelid.